pəˈlagəˌnīt noun
( -s )
Etymology: German palagonit, from Palagonia, Sicily + German -it -ite
: basaltic glass that is more or less altered and devitrified and that occurs with volcanic ash in the form of a basaltic tuff
• pa·lag·o·nit·ic ̷ ̷| ̷ ̷ ̷ ̷|nid.ik adjective